Built 2026-10-19 (19 October 2026)

Maastricht-1 Threshold Days by Year (NLE00100542)

9 fixed thresholds counted per year at Maastricht-1 (NLE00100542): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Maastricht-1 Thresholds

  • Maastricht-1: nights with a minimum temperature at or below 0 C (32 F) in 47 years, most in 1947 with 87.
  • Maastricht-1: days with a maximum temperature at or below 0 C (32 F) in 44 years, most in 1942 with 38.
  • Maastricht-1: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 1947 with 27.
  • Maastricht-1: days with a maximum temperature at or above 90 F (32.2 C) in 30 years, most in 1911 with 17.
  • 9 fixed thresholds have at least one qualifying day at Maastricht-1.
42 years with a qualifying day
Days at or above 30 C (86 F) per year at Maastricht-1 Days per year at Maastricht-1 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 27 in 1947. 01020301906: 101907: 11908: 41909: 11911: 221912: 81913: 41914: 51915: 21917: 41918: 31919: 91921: 111922: 51923: 121924: 31925: 41926: 91927: 21928: 71929: 131930: 91931: 51932: 121933: 71934: 51935: 141936: 51937: 91938: 81939: 41941: 91942: 81943: 71944: 81945: 111946: 61947: 271948: 61949: 41950: 31952: 5190619121918192419291934193919451950
Days per year at Maastricht-1 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 27 in 1947.
Days at or above 30 C (86 F) per year at Maastricht-1
YearDaysDecade average
1906104
190714
190844
190914
1911227.1
191287.1
191347.1
191457.1
191527.1
191747.1
191837.1
191997.1
1921117.3
192257.3
1923127.3
192437.3
192547.3
192697.3
192727.3
192877.3
1929137.3
193097.8
193157.8
1932127.8
193377.8
193457.8
1935147.8
193657.8
193797.8
193887.8
193947.8
194199.6
194289.6
194379.6
194489.6
1945119.6
194669.6
1947279.6
194869.6
194949.6
195034
195254
First to last qualifying date each year at Maastricht-1 For each year, a bar from the first to the last day at Maastricht-1 meeting 30 C (86 F). 1906: 27 June 1906 to 4 September 19061907: 12 May 1907 to 12 May 19071908: 1 June 1908 to 11 July 19081909: 16 August 1909 to 16 August 19091911: 7 July 1911 to 12 September 19111912: 12 May 1912 to 17 July 19121913: 30 May 1913 to 29 August 19131914: 1 July 1914 to 10 August 19141915: 7 June 1915 to 8 June 19151917: 15 June 1917 to 18 June 19171918: 16 July 1918 to 22 August 19181919: 8 June 1919 to 13 September 19191921: 25 May 1921 to 2 August 19211922: 21 May 1922 to 25 May 19221923: 5 May 1923 to 13 September 19231924: 31 May 1924 to 16 July 19241925: 21 July 1925 to 10 August 19251926: 14 July 1926 to 20 September 19261927: 17 June 1927 to 5 July 19271928: 12 July 1928 to 9 September 19281929: 12 June 1929 to 12 September 19291930: 18 June 1930 to 30 August 19301931: 28 May 1931 to 5 August 19311932: 15 May 1932 to 26 August 19321933: 20 July 1933 to 29 August 19331934: 17 June 1934 to 8 September 19341935: 10 June 1935 to 23 August 19351936: 18 June 1936 to 3 September 19361937: 26 May 1937 to 8 August 19371938: 8 June 1938 to 6 August 19381939: 6 June 1939 to 8 September 19391941: 22 June 1941 to 12 July 19411942: 5 July 1942 to 12 September 19421943: 26 July 1943 to 21 August 19431944: 28 May 1944 to 24 August 19441945: 9 May 1945 to 28 August 19451946: 2 July 1946 to 5 August 19461947: 31 May 1947 to 19 September 19471948: 11 June 1948 to 30 July 19481949: 13 July 1949 to 5 September 19491950: 6 June 1950 to 3 July 19501952: 29 June 1952 to 6 July 19521906191319211927193319391946JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Maastricht-1 meeting 30 C (86 F).
First to last qualifying date each year at Maastricht-1
YearFirst dateLast date
19061906-06-271906-09-04
19071907-05-121907-05-12
19081908-06-011908-07-11
19091909-08-161909-08-16
19111911-07-071911-09-12
19121912-05-121912-07-17
19131913-05-301913-08-29
19141914-07-011914-08-10
19151915-06-071915-06-08
19171917-06-151917-06-18
19181918-07-161918-08-22
19191919-06-081919-09-13
19211921-05-251921-08-02
19221922-05-211922-05-25
19231923-05-051923-09-13
19241924-05-311924-07-16
19251925-07-211925-08-10
19261926-07-141926-09-20
19271927-06-171927-07-05
19281928-07-121928-09-09
19291929-06-121929-09-12
19301930-06-181930-08-30
19311931-05-281931-08-05
19321932-05-151932-08-26
19331933-07-201933-08-29
19341934-06-171934-09-08
19351935-06-101935-08-23
19361936-06-181936-09-03
19371937-05-261937-08-08
19381938-06-081938-08-06
19391939-06-061939-09-08
19411941-06-221941-07-12
19421942-07-051942-09-12
19431943-07-261943-08-21
19441944-05-281944-08-24
19451945-05-091945-08-28
19461946-07-021946-08-05
19471947-05-311947-09-19
19481948-06-111948-07-30
19491949-07-131949-09-05
19501950-06-061950-07-03
19521952-06-291952-07-06

Every Fixed Threshold

Fixed thresholds at Maastricht-1
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days422719475
35 C (95 F): Days11519111
90 F (32.2 C): Days301719113
100 F (37.8 C): Days1119441
0 C (32 F): Ice days (max443819425
0 C (32 F): Frost days (min4787194781
-10 C (14 F): Days with min272019422
-20 C (-4 F): Days with min1119291
20 C (68 F): Tropical nights (min8319232

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1906.

Download the Data

  • Data for Maastricht-1 threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).